Insulator.



M. NEUBERT-z R. P. JONES. msULAToR.

APPLICATION FILED PEB.24, 1908. 930,609, Patented Aug. 10, 1909.

2 SHEETS-SHEET 1.

M. NEUBERT & R. P. JONES.

INSULATOR.

ABPLIOATION FILED IBB.24. 1908.

930,609.` Patented Aug-10, 1909.

2 SHEETS-SHEET 2.

' l ifea/Zdffafmf j 15 meter stop: at said' insulatorr the trolley wheel40Tsectiona=l view taken on the line 5-5 of UNITED STATE-@PATENT FFME.

MAX NEUBERT AND RAYMOND P. JONES, Oly GLEN JEAN, WEST VIRGINIA.

INSULATOR.

To-al'l whom fitfmafgco'awem:

Be it known that we, MAX NEUBERT and Rnvivronn P.. Jones', citizens. ofthe United States, residing at Glen Jean', in the county of llayetteandi Statey of West Virginia, have inventer-l1 new and: usefulInsulator, of which the followingis a specification.

'lhis invention relates to sectional insulators for electric trolley'systems and has for' its object to." provide ai sectional?insulatoiathe-construction of which is such that' Athe trol'l'ey WheelWill. remaiznin contact with' the .terminals oil the. insulator darinits passage over the latter' so that shoufl ..the

y will: be' ine a: position tio-start the motor.

A lfurther object ci the inventionA is to Vprevi-de ai section insulatorthe terminal contacts'o which are over-lapperilf` at the center of theinsulator and! connected with' eachl other" by a switch -or bridge wireso that in event ci any disturbance on the' line the section' oi theconductor or linewre containing the insulator may be cut out ordisconnected troni the rest of the line. y

' Further objects and advantages will ap- 'l'.iear'L in the follxiwing`description, it being` understood that various changes in form,'proportions and' minor details of construction'. mar-y he resorted towithin the scope of thefazppended-claims.

In the accompanying drawings forming; apart of this specication: Figurel is a side 'elevation of a section insulator constructed `in accordancewith our invention. Fig. 2 'is a top plan view of the same'. 3 is a bottonr plan View oi? the saine. Flg. 4: is a perspective view of one ofthe end pieces or contacts' detached. .Fi-g. 5- is atransverse Fig. 1.Fig. 6 is a similar view taken on the line v6*--6 of Fig.` 11. Figk is avertical sectional: View taken on the line 7-7' o f Fig. 1. Fi .,"8 isa; perspective lview' of a portion of t 4e bridge wire detached. Fig. 9is a; detail: perspective view of a portion of Athe linev wire. Fig. 10is a transverse sectional view takenon'y the line 1()'-10 of F ig. l.

Similar' numerals of ,reference indicate corresponding parts in all of/tlie gures ofl the drawings. AThe improved section insulator formingthe subject matter Iof tle present invention includes spaced end pieces5 and 6 lhaving Patented Aug. IO, 1909.

Application led February 24, 1908. Serial No, 417,467.

parallel side walls 7 and 8 spaced apart to form anl intermediate socket9 for the reception of a strip of, insulating material l0, said end`pieces being secured to the strip 10 by means of screws or similarfastening devices ll.

Each end piece is provided with a lonagiv udinal extension 12 having itslower face formed `with a longitudinal groove 13 for the reception ofthe adjacent end of the-line wire 14, there beinginclined grooves 15piercing the extensions 12 and communicating with the longitudinal`frooves 13, as chown.

The line wire I4 mayA be or any desired r ross sectional formation andin the present instance is shown in the form of a figure right, theterminals of said line wires being extended within the grooves l5 andlocked in contact with the end pieces by screws 0r :-in1ilar clampingdevices 16.

The lower longitudinal edge of each end piece at the adjacent extension13 is formed with a lip 17 adapted to be bent upwardly in engagementwith the lower surface of the line wire" 14 thereby to forni a bridgepiece and permit the ready passage of the trolley wheel over the base ofthe insulator.

The arms 9 of the end pieces are provided with reduced extensions 18which over-lap at the'center of the insulating strip l() and ereprovidedy with curved 'tcrniil'ials 19 disposed' one on each side ot'the insulating strip 10, as shown.

Secured to one oi' the terminals iS) is a clip 20 in which is pivotallyn'iountod at 21 thev adjacent end of a switch 22, the opposite und ofwhich is adapted to contact with a similar clip mounted on the saineside of the insulator as the clip 2t.

lrI"he switch 22v is preferably in the form of a flat longitudinal barthe free end of which is provided with an operating` handle 24 by meansof which the switch may be moved. to operative and inoperative positionsthereby to connect the contacts or end 'pieces 5 and withthe line wireor to disconnect said' end pieces from the line wire.

The' clip 23 is secured in position on the insulating block lO by meanso' a bolt or pi'n- 25 which extends transversely through the insulatingstrip 10 for engagement with the reduced terminal? 19 of the adjacentarm `S), asbest shown in Fig. l() of the drawings,

sothat when the switch 22 is in closed posiand 6 may tion the current isfree to. pass from the trolley 14 through the adjacent end piece to theswitch and thence through the opposite end piece or contact and ott tothe line.

' The lower longitudinal edges of the side plates S and 9, arepreferably cut awayvto expose the lower longitudinal edge of theinsulating block or strip l0, a portion of .each end piece, shown at theeXtreme ends of Fig. -1` being disposed flush Wirth thebase of theinsulating strip l() to permit the ieady passage of the trolley wheel.It will thus be s eeii` that when the `switch is in closed position andthe trolley wheel passes over the insulator said trolley wheelwillcontact with the side platesA 9 and '10 so that should the motor stopwhen the trolley wheel is on the insulator said trolley wheel will bein-a position to start the motor.

By moving the switch laterally to inoperative position the end pieces orcontacts 5 sulator may be cut out or disconnected from the remainder ofthe line should any disturbance occur on the latter.

Projecting upwardly from the upper longitudinal edge. of the insulatingblock or strip l0 is a bracket 26 having a socket 27 formed thereinforthe reception of a rod or hanger 28 by 'means of which the insulator maybe readily suspended from an over-head support. I Secured to or formedintegral with the end pieces 5 and 6V are cylindrical members 2.9 havingopenings 3() formed therein and extended transversely across the endpiecesl will be separated from each other by the insulating strip 10 soas to cutout that section of the line wire carrying the insulator.

l The bridge wire 31 may be nsdalone or in connection with a switch, itbeing preferable to use the two together so that in case the switchshould get out .of oider the bridge Wire 3l may be brought into service.

While there is shown a figure eight 'type of line wire it is obviousthat said line wire may be circular in cross section or of any.

4other desired cross sectional contour in Which event the longitudinaland inclined be disconnected electrically so` v that the sect-ion of theline carryingthe ingrooves iny the end pieces may be made of acorresponding shape to lit said wire.

It will also be understood that any other for the switch shown in Fig'.1 of the drawings without departing from the spirit'of the invention.Having thus described the invent-ion what is claimed is: y

1. A section insulator for electric trolley Isystems including spacedend pieces constituting contacts leach providedy with a re improved typeof switch may be substitutedi duced extension over-lapping the reduced`A extension of the other end piece at approXiQ-'v apart, and bent.upwardly in the direction of hetop of the insulator to produce curvedterminals there being longitudinal grooves formed in the end pieces forthe reception of a line wire, an insulating strip interposed between theterminals, a clip secured tonne mately the center of the iiisulatoi, theends` l` .of said' reduced extensions being spacedy side ot' theinsulating strip above the 'lower longitudinal edge thereof'andconnected with one of the upwardly curved terminals, a similar clipdisposed on the same side of the insulator and also spaced from thelowerthe center of the insulator, an insulating strip' interposedbetweenV the end, pieces', means carried by the end pieces forengagenient with a line wire, vthe lower longitudinal edges of. the endlpieces being spaced from the lower longitudinal edge of the insulatingstrip for a portion of their length, there being lips formed on the endpieces and adapted to bebent kupwardly `into engagement with the linewire, transverse sockets formed in the end pieces, a single point switchsecured to the insulator on oneside thereof `and spaced from the lowerlongitudinal edge ot' the insulating strip for connecting therover-lapped terminals of the end pieces, and an auxiliary switchdisposed on the other side of the insulatorl and including a. bridgewire' adapted to detachably engage the sockets. i' f In testimony thatwe claim the foregoing as our own, we have hereto aixed our signaturesinthe presence of two witnesses.`

' MAX NEUBERTi RAYMOND P, JONES.l

Witnesses:

E. C. JAMES,

G. L. Hoornii.

